<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录|注册</title>
    <style>
        * {
            padding: 0px;
            margin: 0px;
        }
        
        html,
        body {
            height: 100%;
            width: 100%;
            background-image: linear-gradient(120deg, #487eb0, #fbc531);
            overflow: hidden;
        }
        
        .container {
            position: absolute;
            height: 350px;
            width: 600px;
            background-color: rgba(255, 255, 255, .9);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -30%);
            border-radius: 10px;
            box-shadow: 0px 0px 10px rgba(17, 39, 59, .8);
            border: 1px solid rgba(17, 39, 59, 1);
            overflow: hidden;
            box-sizing: border-box;
            opacity: 1;
            transition: 1s;
        }
        
        .container-show {
            transform: translate(-50%, -50%);
            opacity: 1;
        }
        /*鼠标悬浮式 样式显示*/
        
        .container:hover .title {
            font-size: 20px;
        }
        
        .container:hover input {
            transform: translate(0, -30%);
        }
        
        .container:hover .btn {
            height: 30px;
            width: 90px;
            transform: translate(0, -30%);
            font-size: 12px;
        }
        
        .container:hover .change-box {
            height: 200px;
        }
        
        .container:hover .change-btn {
            display: block;
        }
        
        .title {
            margin-top: 10px;
            position: relative;
            height: 40px;
            width: 100%;
            font-size: 30px;
            display: flex;
            justify-content: center;
            align-items: center;
            text-transform: uppercase;
            font-weight: 500;
            letter-spacing: 3px;
            transition: .4s;
        }
        
        .input {
            width: 400px;
            height: 45px;
            position: relative;
            margin: 40px auto;
        }
        
        input {
            position: relative;
            width: 100%;
            height: 100%;
            border: none;
            outline: none;
            padding-left: 16px;
            background-color: rgba(255, 255, 255, .4);
            border-radius: 45px;
            transition: .4s;
        }
        
        .btn {
            height: 50px;
            width: 160px;
            position: relative;
            margin: -10px auto;
            background-color: rgba(0, 0, 0, .1);
            border-radius: 20px;
            color: rgba(255, 255, 255, .4);
            display: flex;
            justify-content: center;
            align-items: center;
            transition: .4s;
        }
        
        .change-box {
            position: absolute;
            height: 0px;
            width: 100%;
            clip-path: polygon(100% 50%, 50% 100%, 100% 100%);
            bottom: 0px;
            transition: .4s;
        }
        
        .change-btn {
            position: absolute;
            bottom: 30px;
            right: 40px;
            font-size: 20px;
            display: none;
            font-weight: 500;
        }
        
        .change-btn:hover {
            text-shadow: 0px 0px 3px rgba(200, 200, 200, .8);
            cursor: pointer;
        }
        /*登录框样式*/
        
        .login-box {
            position: absolute;
            height: 100%;
            width: 100%;
            background-color: rgba(17, 39, 59, .8);
            transition: .4s;
            z-index: 1;
            transform-origin: 0 100%;
        }
        
        .login-box .title {
            color: white;
            text-shadow: 0 0 7px rgba(255, 255, 255, .9);
        }
        
        .login-box input:focus {
            box-shadow: 0 0 10px rgba(1, 1, 1, .8);
        }
        
        .login-box input {
            caret-color: white;
            color: rgba(255, 255, 255, .8);
        }
        
        .login-btn:hover {
            color: white;
            background-color: #57606f;
            box-shadow: rgba(0, 0, 0, .1);
            text-shadow: 0px 0px 2px rgba(0, 0, 0, .1);
        }
        
        .login-change {
            background-color: rgba(255, 255, 255, .8);
        }
        /*注册框逻辑*/
        
        .sign-box {
            position: absolute;
            height: 100%;
            width: 100%;
            background-color: rgba(255, 255, 255, .8);
            transform-origin: 0 100%;
            transform: rotate(90deg);
            transition: .4s;
            z-index: 1;
        }
        
        .sign-box .title {
            text-shadow: 0 0 10px rgba(200, 200, 200, .8);
            font-weight: 500;
        }
        
        .sign-change {
            background-color: rgba(17, 39, 59, .8);
        }
        
        .toLogin {
            color: white;
        }
        
        .sign-box input {
            box-shadow: 0 0 3px black;
        }
        
        .sign-box .btn {
            color: #1e90ff;
            background-color: rgba(200, 200, 200, .1);
            transition: .5s;
        }
        
        .sign-box .btn:hover {
            color: white;
            background-color: #1e90ff;
        }
        /*登录注册切换效果*/
        
        .animate-login {
            transform: rotate(-90deg);
        }
        
        .animate-sign {
            transform: rotate(0deg);
        }
        /*mac三色按钮*/
        
        .apple-btn {
            position: absolute;
            height: 15px;
            width: 65px;
            top: 3px;
        }
        
        .apple-btn li {
            list-style: none;
            position: relative;
            height: 15px;
            width: 15px;
            border-radius: 15px;
            opacity: 0;
        }
        
        .login-apple li {
            left: 5px;
            float: left;
        }
        
        .sign-apple li {
            right: 5px;
            float: right;
        }
        
        .sign-apple {
            right: 5px;
        }
        
        li:nth-child(2) {
            margin: 0px 2px
        }
        
        .red-btn {
            background-color: red;
            transition: .3s;
            transform: translate(0, -50%);
        }
        
        .yellow-btn {
            background-color: orange;
            transition: .6s;
            transform: translate(0, -50%);
        }
        
        .green-btn {
            background-color: rgb(15, 136, 15);
            transition: .9s;
            transform: translate(0, -50%);
        }
        
        .container:hover .red-btn {
            opacity: 1;
            transform: translate(0, 0);
        }
        
        .container:hover .yellow-btn {
            opacity: 1;
            transform: translate(0, 0);
        }
        
        .container:hover .green-btn {
            opacity: 1;
            transform: translate(0, 0);
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="login-box">
            <div class="apple-btn login-apple">
                <li class="red-btn"></li>
                <li class="yellow-btn"></li>
                <li class="green-btn"></li>
            </div>
            <div class="title">Login</div>
            <div class="input">
                <input type="text" placeholder="请输入用户名">
            </div>
            <div class="input">
                <input type="password" placeholder="请输入密码">
            </div>
            <div class="btn login-btn">
                <span>登录</span>
            </div>
            <div class="change-box login-change">
                <div class="change-btn toSign">
                    <span>去注册</span>
                </div>
            </div>
        </div>
        <div class="sign-box">
            <div class="apple-btn sign-apple">
                <li class="red-btn"></li>
                <li class="yellow-btn"></li>
                <li class="green-btn"></li>
            </div>
            <div class="title">sign</div>
            <div class="input">
                <input type="text" placeholder="请输入用户名">
            </div>
            <div class="input">
                <input type="password" placeholder="请输入密码">
            </div>
            <div class="btn login-btn">
                <span>注册</span>
            </div>
            <div class="change-box sign-change">
                <div class="change-btn toLogin">
                    <span>去登录</span>
                </div>

            </div>
        </div>
    </div>
    <script>
        //采用JQuery的方式封装我们的功能模块，以提高性能（缩短作用域链）防止全局污染
        (function(window, document) {
            //封装选择器
            const getSelector = ele => {
                    return typeof ele === "string" ? document.querySelector(ele) : ""
                }
                //登录注册的载入
            const containerShow = () => {
                var show = getSelector(".container");
                show.className += " container-show"
            }
            window.onload = containerShow;

            //登录注册切换逻辑
            let toSignBtn = getSelector(".toSign"),
                toLoginBtn = getSelector(".toLogin"),
                loginBox = getSelector(".login-box"),
                signBox = getSelector(".sign-box");

            toSignBtn.onclick = () => {
                loginBox.className += ' animate-login';
                signBox.className += ' animate-sign';
            }

            toLoginBtn.onclick = () => {
                loginBox.classList.remove("animate-login");
                signBox.classList.remove("animate-sign");
            }
        })(window, document)
    </script>
</body>

</html>